Review on 2-Pack Mini Digital Hygrometer Gauge Thermometer – Indoor/Outdoor Temperature Humidity Meter for Humidifiers, Greenhouse, Reptile Plants, Humidors – LCD Monitor, Fahrenheit Display by James Nedumaran

I bought two of these to monitor humidity and temperature inside the incubator. Unfortunately, they never coordinated with each other or any other device. I tried recalibrating them by placing them outside in a well-ventilated area and removing, resealing, and replacing the batteries. Nothing worked - they still disagreed, even sat next to each other. The size was perfect and the screen easy to read, but what's the point if you can't trust the results? If you just want a general idea of your local conditions, that should be fine. Unfortunately, if you need precision, this isn't for you.